Steering device for revolving shovels and the like.



C. B. KiNG, B. JACOBY 61 H. E. HUUSH.

STEERING DEVICE FOR REVOLViNG SHOVELS AND THE LIKE.

APPLICATiON FiLED OCT. 24. 19H.

Patented May 28, 1918.

2 SHEETS-SHEET I.

D MH/ENTO nrroimu UNITED-STATES PATENT OFFICE.

CHARLES B. KING, BENJAMIN JACOBY, AND HERBERT E. HOUSE, OF MARION, OHIO,

ASSIGNORS TO THE MARION STEAM SHOVEL COMPANY. OF MARION,

BATION OF OHIO.

OHIO, A CORPO- STEERING DEVICE FOR REVOLVING SHOVELS AND THE LIKE.

Specification of Letters Patent.

Patented May 28, 1918.

Application filed October 24, 1917. Serial No. 198,225.

To all whom it may concern:

Be it known that we, CnARLEs B. KING, BENJAMIN J AGOBY, and Hammer E. RoUsH, citizens of the United States, residing at Marion. in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Steering Devices for Revolving Shovels and the like, of which the following is a specification, reference being had therein to the accompanying drawmg.

This invention relates to steering devices for revolving shovels and the like.

In a mechanism of this kind it is desirable that the swinging movement of the revolving platform, which carries the excavating, or other, mechanisms, should be utilized for imparting steering movement to the steering axle when the machine is being propelled over the ground. The object of the invention is to provide a strong, durable device for connecting the revolving platform with the axle, which will be very simple in its construction and operation; and further, to provide such a device which may be easily manipulated to connect the platform with, or disconnect the same from, the axle.

To this end it is also an object of the invention to provide a steering device of this kind,the parts of which will be connected directly with and carried by the axle and the platform. thus eliminating the use of intermediate devices supported on other parts of the mechanism, and of guideways and the like.

In the accompanying drawings Figure 1 is a side elevation of a revolving shovel, partially broken away. showing our invention applied thereto; ig. 2-is a plan view of the forward portion of such a machine, with the excavating and power mechanisms removed, partially broken away to show the invention applied thereto; Fig. 3 is afront elevation of the mechanism shown in F lg. 2; and Fig. 4 is a sectional detail view of the connection between the steering device and the platform.

In these drawings we have illustrated one embodiment of our invention and have cable to machines of various. kinds which comprise structures having swinging movecomprises a truck consisting of a base 1 supported at its rear end upon traction wheels 2 and at its forward end by steering wheels 3,- which are connected thereto by a steering.

axle 4, which axle comprises an upwardly extending trunnion, or pivot pin, 5 mounted in one end of the base 1. rcferably the upwardly extending trunnion, or pivoted pin, of the aXle is pivotally connected to the body portion 4 thereof, as shown at 6. to permit the axle to accommodate itself to any qualities in the supporting surface. Pivotally mounted upon the truck is a platform 7 which carries the excavating and power mechanisms. This platform is rotated by means of a pinion 8 carried by the platform and meshing with an annular rack 9 secured to the base 1 and arranged concentrically of the axis of rotation of the platform. Rollers 1O interposed between the platform and the upper surface of the rack 9 serve to support the platform in a position parallel with the base. The propelling movement is transmitted from the engine on the platform through a central vertical shaft 11 to a horizontal propelling shaft 1? arranged beneath the base 1 and operatively connected with the traction wheels 2. The mechanism described is that of a well known revolving shovel and it will be understood that it is here shown and described for the pur ose of illustration only.

Tie steering mechanism proper, which serves to connect the revolving platform with the axle, comprises but two main parts, one of these parts consists of an arm 13 which is directly connected with the axle in such manner that the movement of the arm will impart steering movement to the axle. Preferably this arm is rigidly secured to the upwardly -extending trunnion, or pivot pin. 5 of the axle, and in the resent instance the arm is arranged above t e base 1 and is provided at one end with a squared opening to receive the squared head of the trunnion 5, and is retained on the trunnion 3 by means of a pin 14 extending through said trunnion and through the apertured portion of the arm. It will be obvious. however, that the arm will be secured to the trunnion of tli axle in any suitable manner. That end of the rm opposite the end which i ooinn-olwl with llio pivot pin is connecl'ml with [ho swinging :li'nino 7 by menus of a link if), whirh pivotally connected at one PIHl with lho arm and is pivotally connected in? iln olhor owl with liho iliilxl'orin 7. The connvrrliun holwoon tho linlc l5 and tho arm 'lil pref-rainy rilvtnclnihlr to permit of tho purl, lining aopm'nlml whon tho oxniivating llliifilliiliir lil ii; in nsv, or when swinging nrrri-nwiil' ii: in he irn inrlioil to tho platform for 1. n1- o:-i':-- lllll' than Flooring PHI'PUSHS. As him? rsh nn wilmw employed a very i-iimnlo l'orin oi nomination. which consists nn'rolv of :l s'unl 1C- exlemling npwnrilly from tho onlrr and of the arm and adapted to rem-1w an ilpiil'llilfll end, or oyo, 17 of tho link. inasmuch as tho link oxti-nds npwnrilly and thorn is an upward pnll on the link ii; is proforublo that some lntilllf such as :1 (:oltni pin 13?, should. hr provided to prownt liw, m n of the link from slipping oil this slit-d. Thu connoit'tion butwvon tho link innl l'ln; wringing 'ilziti'orni T is n lill'llplO pn'nlil womn'rliion which in nnnliloom enough in iwrlnii of linliln-rl wr iirnl mw mum of Hi w th? Marl ml ho link, lliwl in, of 2hr llil rhi 'ii innniirlwl with ll H 311i} In tho yl'vwnl, instnnno we have nnilo this mnnwlion h rim-Airing to one of he Siilo IHPH'IlMIR of the i'riuno of the plnl'forni 7 a brim-lu l, 1? lnix ing It do wmling hogs 20 to rorniw an nperturwl onrl, or eye, 21, of tho link 15, A holl; 22 extends throngh the ln'nclu-t :unl the how; and is n'ovidoi'l at its low-oi one} with a washer and :i nut 21 to sernrr n10. ovo oi" the link in position on the boss, Th f r: of the link fits loosol about the lH F: "i'lll th r in QHfilClkHil clearance he (warn till-2 was liln on. v Mi ion;

fill

- min mini liii: tinarring mwhu; I; hm. :inrl us here shown iii;

#5, n hook-alumni lirzirl 7 arljnomii: l

dim ill-. linlr is lisornmouii-il fro finned in the ironic-filingwd q orlml in tlii ino wrn ivo normal 0}":1Hllli'l'i of lhe lianisin.

tho (1'3 Vino will he roinliljv mil ii, will. be nppnrrnt that i :irin whnla in oonnootocl will. 'lho siiwzrnigr m' rm'nigiw ly mnnociwl with tho Hill; WlULl in ronnwterl *ith tho plan: f rm Llnil 'n w swinging lnovei'nont in1- pall'hll o the platform will be transmitted in line axle, and llna'ii there will be no lost lll ii lll, 'anal itflXlE-HH!ilmilily the axle will. resjmnii ins-inillp, and fully to the movoinont of 3h nhil I l Ii, 'inovhanisni ox- CLQFllln-ji) J? wry strong, and rei ilnl lqnirvs; tho Ill-1P of no parts mounted on the truck or platform. other than the link 15 Wllltll in i-onni-i-lml with tho platform, 1o illlil'w no Lniiloa; or connecting devices (liflirrnll oi'w- -i- :n,sm.-l1 as urn used when floxihlo (ffillllctllolh are IJl ,l\'l(l((l between lhe platil'orn: and tho :ixlu. (lonsoqmanlly when the LllWlUl in inopvmlivv hero urn no parts which P1111 ponaihly inli-l-l'ui'v with the normal 0])- vi'iilion ol' lhv nmczhinr. The link when iillo rmh: Himn ils support, 25, whilo the lUlll lira nlinvu (he, haw I. In the normal oper- Minn n1" slimolq ol' this lillltl tho mechanism in :lilVlHlftll hy Slifll'll SlLOPS and it iS not Ordinarily ncirvssnry that any steering movement .-,houlil ho 'lllllllll'lffll to the steering axle, it lining fillllllUlll if this axle: is held in a fixed position with n-lnlion to the truck as a xiholo. \'\*'u have, lihoroloru, provided means For lurking tho :RXl against inovrmont I'Plalivol l1; lilw him: I As horn shown the arm I i proiiilv-l with an uporturod boss 2% llli'l ll,l; fll whivh mu-mln 4i pin 27, the lower P1l l ol' whivh in ll llipl'kd to enter any one of i nw'i s nl' warning :38 in tho upper surlmi 'll Llv. lj ilflii i.

iilnlu no lmfit Hhrnrn :nnl (inscribed one iznilmilinmnh ol our invcnlion we do not do- ;imin be limited to the details of construction tliurool' as various modifications will hciznr lo a, pui'wn sliillvd in. the art.

liming now hilly described our invention, what we claim as new and desire to secure by Letlors Fluent, iS:--

1. In a Jinn-hing of the character described, :1 truck c'oin tirising a base, a steering axle pivomlly connected with said base, and \Vllkfllh on mid axle; 51 structure mounted on n ll'l -j i or swinging movement, an n'rn'i 1' il":3" jl ii1l in marl steering axle, and

5 iii the clmraotor dsssc ribeal, v i bass, steering axle, win-M on 51nd ring iixlo and a trunnion L'illlll'zClljlSE Fllllll l wring ELXlO with said base; J! 2 4i linlnr nimn ml on mid truck for swing inn; nnmmwnt i'lll :irin rigidly secured to will trunnion. and 11191115; for opeml orniiioi-hng sniil mm with said swi: sin-notion,

"l. in u jinn-lino oith s Wham-slot (lPSQPlllE-illan-l; con z'wing :i bunt, steering axle, lim IV. on mi .'-l,i:wing axle, and a Lziznnion oimin 'ciinig 32ml 1. ing nXlo with said b21156; a l ncl'llro llHIHlllQil on said truck for swin inn" inowinnnl, iln rm rigidlv secured tosald UHHJllOD, and ilomchablo nieans for operalllCEly connecting said arm with said swing" mg slruclure.

4. In a machine of the character described, a trunk r'olnpl'iSing a base, a steering axle, whwrla: 011 said Steering axle, and a. trun- Ill base; a structure mounted on said truck for swinging movement, an arm rigid'l'fy secured to said trunnion, and a link connectediat one end with said arm and at the other end with said swinging platform.

5. In a machine of the character described, a truck comprising a base, asteering axle, Wheels on said steering axle, and a trunnion connecting said steerin axle with said base; a structure mounted on said truck for swingin movement, an arm rigidly secured to said trunnion, and a link connected at one end with said swinging platform and de tachably connected at its other end with said arm.

6. In a machine of the character described, a truck comprising a base, a steering axle, wheels on said steering axle, and a trunnion connecting said steering axle with said base; a structure mounted on said truck for swing in movement, an arm rigidly secured to said trunnion, a link connected at one end with said swinging platform in a manner to permit the other end thereof to be raised and lowered, means for detachably conneetin said other end of said link with said arm, and a support carried by said platform adapted to receive said link when it has been disconnected from said arm.

7. In a machine of the character described,

a truck comprising a base, a steeringaxle, wheels on said steering axle, and a trunnion connectmg said steering axle with said base;

a structure mounted on said truck for swingarm rigidly secured to said trunnion a part carried by said platform and having a boss, and a link having an eye extending about said boss and having its other end connected with said arm.

8. In a machine of the character described, a truck coniprising a base, a steering axle, wheels on said axle, and a trunnion connecting said axle with said base a structure mounted on said truck for swinging movement detachable steerin devices to connect sai swinging structure with and disconnect the same from said trunnion, and means to lock said axle against movement relatively to said base when said steering devices have been detached.

9. In a machine of the character described, a truck comprising a base, a steering axle, wheels on said axle, and a trunnion connecting said axle with said base; a structure mounted on said truck for swinging movement, an arm rigidly secured to said trunnion, a link detachably connected at one end with said arm and connected at its other end with said swinging structure, and means for locking said arm against movement relatively to said base when said link has been detached therefrom.

In testimony whereof, we aflix our signatures hereto.

ing movement, an

cnannns B. KING. BENJAMIN JAOOBY. HERBERT ROUSH. 

